Using Overlay Layouts in 1.8

Schedule an Overlay Layout to keep that all important content on your displays whilst giving you more flexibility with type and frequency of content you display ‘underneath’!
Create a layout in the normal way, add regions to fit around your existing content so that your overlay layout will, in effect, sit ‘on top’ of all your other layouts that are scheduled at the same time, and allow for all ‘layers’ of your content to be shown in rotation.
Select Overlay Layout as the Event Type in scheduling. Xibo will not render the background once this option has been selected so layouts that have been scheduled for the same time will play and rotate with your important content in the overlay layout unaffected and remaining visible on displays.

The following video gives you a step by step guide on how to achieve this.